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71results about How to "Consistent moisture content" patented technology

Board balance health-preserving chamber and board health-preserving method

The invention relates to a board balance reconditioning chamber and a method for reconditioning boards. The inside of the board balance reconditioning chamber is provided with a dehumidifier, a humidifier and temperature control equipment, and the middle part of the board balance reconditioning chamber is provided with an air flow guide device. The method for reconditioning boards comprises the following steps: 1) piling boards in the board balance reconditioning chamber; 2) adjusting the temperature and humidity of the board balance reconditioning chamber and determining the board processing time according to the preset water content range of the boards to balance the water content of all parts of the boards and to release the inner stress of the boards in a constant temperature and humidity environment; and 3) determining the water content of the boards and completing the reconditioning treatment when the water content of the boards reaches a preset value. The invention provides the constant temperature and humidity environment with flowing air to balance the water content of all parts of the boards, to release the inner stress of the wood fibers and to reduce the drawbacks of wood floors such as deformation and bending, thereby improving the percentage of cut-turn and the stability of the quality of the wood floors.
Owner:GUANGDONG YINGRAN WOOD IND

System used for measuring internal space charges of oil paper insulating material

The invention discloses a system used for measuring internal space charges of an oil paper insulating material. The system comprises an upper electrode system body and a lower electrode system. The upper electrode system body comprises an upper electrode, a direct-current high-pressure source and an impulse source. The lower electrode system body comprises a lower electrode, a piezoelectric sensor and a wide-band amplifier. According to the system, due to a sealing ring and an exhaust module, consistency of features such as the temperature and the micro-water content of a tested object can be ensured in the process of measuring distribution of the internal space charges of the oil paper insulating material; the phenomenon that water is absorbed from air in the process of measuring the space charges and changes of the micro-water content in the tested object can be avoided mainly; in additional, the upper electrode system body is a whole with the fixed weight, on the premise that the thickness of the tested object is uniform, stress on the tested object can be uniform, the problem that due to the fact that the upper electrode system body is fixed manually in an existing measuring system, the pressure is not uniform, and deviation of the measured result occurs can be solved, so that the measured result is more accurate.
Owner:XI AN JIAOTONG UNIV +2

Slurry consolidating sample production apparatus and use method thereof

The invention discloses a slurry consolidating apparatus and a use method thereof. The slurry consolidating apparatus comprises a power supply system, a sample production platform system and a die system. The method comprises the following steps: mixing fine grained soil with air-free water, pouring the obtained mixture into a container, sealing, storing, and stirring after water is fully absorbed; completing assembling of the die system; fixing the die system to a sample disposing base plate of the sample production platform; pouring a slurry into a sample die through a funnel; adjusting the height of a reaction force crossbeam to make a presser contact with the upper surface of the slurry; starting an inflator, and carrying out grading loading; allowing the sample to be in a sealed state; and applying an axial consolidating pressure, and respectively adding negative pressures with equal size to a top cover and a die pedestal to accelerate consolidation until consolidation is completed. The apparatus and the method effectively reduce the disturbance possibility of the sample, improve the repeatability of the sample, make the sample have uniform water content and particle size distribution, and effectively improve the sample production efficiency and the quality of the sample.
Owner:NANJING UNIV OF TECH

Compensating automatic measurement system and method of soil surface evaporation capacity

The invention relates to a compensating automatic measurement system and a method of soil surface evaporation capacity. The system comprises a soil measure apparatus, an evaporating weighing sensor, a negative pressure compensating apparatus and a control apparatus. The soil measure apparatus comprises a chassis, a ceramic plate and soil column cylinder; a water guiding zone is arranged between the chassis and the ceramic plate, and the chassis is provided with a water-guiding hole. The negative pressure compensating apparatus comprises a water supplementing bottle connecting with the water-guiding hole through a pipeline, a negative pressure buffer bottle connecting with the water supplementing bottle through a pipeline, a negative pressure sensor and a negative pressure pump that are connected to the negative pressure buffer bottle successively through pipelines, and a tensiometer ceramic head connecting with another negative pressure sensor. The control apparatus comprises a singlechip, a click circuit, an A / D converter, a data memory device, a communication interface circuit, a power supply and a drive circuit; the A / D converter transmits data collected by the two negativepressure sensors to the singlechip; the click circuit controls time intervals of collecting data from the evaporating weighing sensor and the compensating apparatus and inputs the data to the data memory device through the A / D converter. The invention can be widely applied to measurements of evaporation capacities of various field soil.
Owner:CHINA INST OF WATER RESOURCES & HYDROPOWER RES +1

Processing process for threshing, re-drying and classifying tobacco stems

ActiveCN105639715AFacilitate moisture escapeReduce the temperatureTobacco treatmentLoss rateEngineering
The invention discloses a processing process for threshing, re-drying and classifying tobacco stems, which comprises the following steps: firstly performing leaf-stem separation; preliminarily screening stem turning heads and broken stems; then screening the tobacco stems into the three types of tobacco stems with different thicknesses of 1.5-2.0 mm, 2.0-2.5 mm and 2.5-3.0 mm; pre-pressing the three types of tobacco stems, wherein gaps among the pressed stems are 0 .8 mm, 1.0 mm and 1.2 mm respectively; mixing the three types of pre-pressed tobacco stems and re-drying; finally packaging and storing. According to the processing process disclosed by the invention, the tobacco stem re-drying efficiency can be improved, the consistence of the batch water loss rate and the moisture content after re-drying is improved, and the tobacco stem aging progress is accelerated; the tissue destruction difference degree of the tobacco stems with different thicknesses in the cut stem making process is reduced, the stem storage time is shortened, the production efficiency of the cut stem making procedure is improved, the cut stem moisture content fluctuation, the rejection rate and the energy consumption are reduced, and the uniformity of cut stems, the moisture content and the stability of filling values are improved.
Owner:CHINA TOBACCO HENAN IND

Soil sampling method and device for undisturbed soil samples with roots

ActiveCN104165780AIntact retention propertiesEasy to demouldWithdrawing sample devicesEngineeringWater content
The invention discloses a soil sampling method and device for undisturbed soil samples with roots, and belongs to the undisturbed soil sample soil sampling method and the forming device in a geo-technical test. The device comprises a plurality of steel tiles combined together, and the steel tiles combine to form a container soil sampling canister having the periphery sealed and having the upper part and the lower part opening; the lower part of the steel tiles is provided with a hoop groove internally matched with a plurality of dark hoops, and the dark hoops are fixed in the hoop groove through screws; the upper side of the device is provided with a cover cap. When in specific use, the soil sampling device is provided with a large device and a small device which have the same type and respectively are a mother sampler and a sub sampler, wherein the mother sampler is multiple times the diameter of the sub sampler and two times the height of the sub sampler. The invention aims to provide the soil sampling method and device for the undisturbed soil samples with the roots, characteristics of undisturbed soil are integrally kept, undisturbed soil sampling is facilitated, and demolding is facilitated; and moreover, the water content, the density degree and other parameters of the same batch of undisturbed soil samples are kept consistent.
Owner:CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY +1

Fill valley foundation settlement inversion method based on centrifugal model test

The invention discloses a fill valley foundation settlement inversion method based on a centrifugal model test. The method comprises the steps of 1, obtaining solid fill engineering profile parameters; 2, manufacturing a model box, and carrying out a centrifugal model test on the model box to obtain model filling settlement data; 3, manufacturing a rigid valley foundation model box, and carrying out a centrifugal model test on the rigid valley foundation model box to obtain model filling settlement data; 4, manufacturing a flexible valley foundation model box, and carrying out a centrifugal model test on the flexible valley foundation model box to obtain model filling settlement data; and 5, carrying out settlement inversion on the original valley foundation of the fill project. Accordingto the method, the long-term deformation of the original valley and the later-period filling soil can be visually displayed in a short time, the model boundary condition is clear, the inversion idea is concise, the additional settlement interval value of the original valley foundation of the fill engineering under the action of the overlying filling soil load can be rapidly obtained, and the method can be used as an auxiliary means for fill engineering design and engineering settlement prediction.
Owner:CHINA JK INST OF ENG INVESTIGATION & DESIGN

A measuring method and device for measuring the relationship between plant transpiration and leaf area

The invention relates to a measuring method for determining the relationship between plant transpiration and leaf area, comprising the following steps of: sowing a plant inside an inner cylinder with the plant being corresponding to a seedling emergence hole and a seedling emergence slit, and adjusting moisture to a soil water content until there is no stress for the plant growth; providing an outer cylinder with soil and moisture which are consistent with those in the inner cylinder, and measuring the quality difference of the inner cylinder and the variation of the plant leaf area so as to obtain the relationship between the plant transpiration amount and the plant leaf area. According to the method, a device which can be used comprises the inner cylinder, the outer cylinder and a feed pipe, wherein the inner cylinder is a cylindrical shell with a lid and with the bottom sealed; the lid is provided with the seedling emergence hole; the outer cylinder contains two internal-and-external layered spaces and the seedling emergence slit; the inner cylinder is correspondingly arranged inside the internal space; the seedling emergence slit is corresponding to the seedling emergence holeof the inner cylinder; and the feed pipe is connected to the external space of the outer cylinder. The device provided by the invention has a reasonable structure and can be used to effectively reduce or eliminate the interference of environmental conditions which influence the measuring result. The measuring device is simple and easy to operate with accurate measuring results.
Owner:BEIJING NORMAL UNIVERSITY

Edible fungus repeated-drying processing method

InactiveCN103519321ADry fastGuarantee internal and external qualityFood preservationFood preparationBiotechnologyMicrobiology
The invention provides an edible fungus repeated-processing method, particularly relates to an edible fungus drying processing method and belongs to the field of food processing. The edible fungus repeated-drying processing method comprises the following steps: firstly, sequentially placing edible funguses into two environments with different temperatures for drying; primarily drying at a temperature; drying at a low temperature; and placing the dried edible funguses in the environment with the specific temperature and humidity and standing, wherein the temperatures and time of two times of drying are different so as to prevent effective components in the edible funguses from being damaged and enable the water content to rapidly reach the needed requirements. The edible funguses are processed by adopting the method so that the eating taste of the edible funguses can be improved obviously; the edible funguses products are good in appearance and uniform in color and luster, have no decaying or deterioration, are long in guarantee period and high in edible value, are purely green foods, have the functions of tonifying qi and building body, nourishing the kidney and nourishing the stomach, activating blood and the like, and have the characteristics of simple production process and low cost.
Owner:KAIXIAN ZHONGKE PRODIVITY PROMOTION CENT

Incohesive soil freezing sample preparation equipment

The invention discloses incohesive soil freezing sample preparation equipment which includes a sample preparation chamber assembly, a temperature control chamber assembly, an axial transmission assembly, a low temperature circulating bath and signal acquisition monitoring assembly and a vacuum pumping assembly. The sample preparation chamber assembly is internally provided with a sample preparation chamber and used for holding samples and filtering water on the samples, the temperature control chamber assembly is used for low temperature freezing the samples, the sample preparation chamber assembly is located inside the temperature control chamber assembly, the axial transmission assembly is used for pushing out the samples after a test finished, the low temperature circulating bath and signal acquisition monitoring assembly is used for collecting test and monitoring data, and the vacuum pumping assembly is used for vacuumizing inside the temperature control chamber assembly. The sample preparation equipment can be used for directly preparing saturated remolded samples of gravel, gravel soil, sand soil, silty soil and other incohesive soils, the sample preparation process is simpleand easy, operability of the whole equipment is high, the efficiency of sample preparation is improved, and the time is saved.
Owner:HUAZHONG UNIV OF SCI & TECH

Wood conditioning equipment

The invention discloses wood conditioning equipment which structurally comprises a shell, a conditioning cavity, a controller, an exhaust opening, a dehumidification window, a circulating fan, a fan and an air inlet pipe, wherein the circulating fan and the fan are arranged on one side of the shell; the air inlet pipe is arranged at the bottom of the shell; the controller is arranged at the top end of the outer side of the shell; the exhaust opening is formed in the lower end of the controller; the conditioning cavity is fixedly arranged inside the shell and comprises a wood storage rack and an annular hot air pump system; the wood storage rack is fixedly mounted at the center of the conditioning cavity; an air distributor is fixedly arranged at the bottom end of the wood storage rack; the annular hot air pump system comprises a compressor, a water condenser, a heat absorber, an evaporator, a condenser and an expanding net. According to the wood conditioning equipment, energy conservation and environment protection are realized, the dehumidification effect is good, the consistency in the moisture content of wood is realized, wood products are prevented from deformation and cracking during the drying process, and the wood conditioning effect is further improved.
Owner:天津领超科技有限公司

Dynamic compaction construction process based on environmental protection

The invention relates to a dynamic compaction construction process based on environmental protection, and relates to the technical field of dynamic compaction. The dynamic compaction construction process comprises the following steps of (S101) leveling a to-be-constructed site, setting a compaction point according to construction requirements, and burying gravel at the compaction point; (S102) arranging a watering cart lane on the leveled to-be-constructed site; (S103) controlling a watering cart to spray water to the to-be-constructed site along the watering cart lane in a first working area; (S104) controlling a dynamic compaction machine to conduct first point compaction on the compaction point of the first working area, and controlling the dynamic compaction machine to conduct first full compaction on the to-be-constructed site; (S105) drawing a circumscribed rectangle as a second working area according to the shape of the area which does not reach the preset standard after full compaction in the first working area, and controlling the dynamic compaction machine to conduct second full compaction along a compaction route; and (S106) controlling a bulldozer and a road roller to level and compact the to-be-constructed site after the second full compaction is completed. According to the dynamic compaction construction process, the dynamic compaction construction efficiency is effectively improved, and environmental pollution is reduced.
Owner:江苏筑港建设集团有限公司

A kind of process method of in-situ leaching ore injection of ionic rare earth ore

ActiveCN112853124BSpread evenlyAvoid the phenomenon of collapse (landslide)Process efficiency improvementEngineeringMechanical engineering
The invention discloses a process method for in-situ leaching ore injection of ion-type rare earth ore. The process method includes the following steps: S1. Drilling: drilling a plurality of horizontal liquid injection holes at intervals on the side of the ion-type rare earth ore body, Horizontal liquid injection holes are arranged in the ore body horizontally, or point from the periphery of the ore body to the center of the ore body; multiple horizontal liquid injection holes are distributed in multiple layers in the height direction of the ore body, and multiple horizontal liquid injection holes located on the same layer Distributed at intervals in the horizontal direction; S2. Intubation: insert a hard strip into each horizontal injection hole, and then insert a connecting tube into the horizontal injection hole along the hard strip; S3. Mine: inject ore leaching agent into the horizontal liquid injection hole through the connecting pipe; S4. Water injection and rinsing: inject water into the horizontal liquid injection hole through the connecting pipe. The technical method of the invention arranges multi-layer horizontal liquid injection holes, pressurizes to adjust the flow rate, and controls the liquid injection in layers and segments; avoids runoff formed by the ore leaching agent and directly penetrates the ore body; and the rare earth leaching rate reaches more than 96%.
Owner:JIANGXI IONIC RARE EARTH ENG RES CO LTD
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